
We have adopted notation similar to [1]}—\(\varepsilon _k\)  and \(\bar{\varepsilon }_k\)  are not to be confused with the signal strength perturbations \(\varepsilon _{i,n}\)  that appear in Sections 1-4. Standard properties of these definitions are stated below. See Theorem A.5, Lemma 8.18, and (8.4.19) of [1]}.
